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61.
广州是传统的海港城市 ,建城至今已有 2 2 16年的历史 ,它建城之始便与我国海上丝路的开辟有着直接联系 ,因而研究海上丝路的发展 ,无疑是研究广州发展史的重大课题。从广州城始建特色与海上丝路之开辟、陆上丝路与海上丝路优劣态势互易对广州的影响、海上丝路之多功能、广州港与泉州港地位对比等多角度分析 ,丝路绝非单一的经贸功能 ,它同时兼具中外政治交往功能和文化交往功能 ,只有对丝路这三大功能进行全方位考察 ,才能真正阐明丝路对促进世界各国社会文明的巨大贡献。  相似文献   
62.
在体育教学中加强对学生非智力因素的培养是十分重要的。因为学生的学习活动是智力因素与非智力因素相互作用的产物,非智力因素得到发挥,将有助于智力因素的发挥和技能水平的提高。体育课是培养学生非智力因素的一条有效途径。但在教学中要充分引导学生的非智力因素,教师必须做到四点:1.创设情境;2.重视评价;3.开辟第二课堂;4.加强理论学习,形成独特的教育风格和个性。  相似文献   
63.
本文通过适当选择坐标系,导出了非相对论情况下带电粒子在均匀电磁场中运动的普遍规律。由此推出的某些特殊情况下带电粒子的运动规律与有关文献给出的结果是一致的。  相似文献   
64.
“六·二”配备是古巴女排对传统“四·二”配备阵容的创新 ,是国际排坛对阵容的一种新的称谓 .分析“六·二”配备的内涵、特点及要求 ,结合古巴女排的赛场运用做一比较 ,提出了中国女排短期内不便运用此阵容的建议 .  相似文献   
65.
为人民服务 ,是一个需要随着社会发展变化的实际 ,不断探索、不断创新 ,才能不断解决的历史性课题。中国共产党为人民服务的社会实践 ,经历了民主革命时期、改革开放前的时期和改革开放后时期的理论探索。“三个代表”重要思想 ,是中国共产党在新世纪新阶段探索怎样代表人民的利益 ,如何更好地为人民服务的最新理论成果。“三个代表”在为人民服务上的理论创新 ,是为中国共产党在新的历史条件下怎样代表人民的利益 ,如何更好地为人民服务 ,以及完善和发展社会主义指出了一条根本途径  相似文献   
66.
本文针对大学女生学习韵律体操这一特殊的学习活动进行专题的成就行为的归因研究.根据归因研究反映出的问题,就当前大学女生的韵律体操教学提出建议,为学校体育教学,教学改革及大学女生的教材建设提供理论依据.  相似文献   
67.
We develop and propose a new counting method at the aggregate level for contributions to scientific publications called modified fractional counting (MFC). We show that, compared to traditional complete-normalized fractional counting, it eliminates the extreme differences in contributions over time that otherwise occur between scientists that mainly publish alone or in small groups and those that publish with large groups of co-authors. As an extra benefit we find that scientists in different areas of research turn out to have comparable average contributions to scientific articles. We test the method on scientists at Norway’s largest universities and find that, at an aggregate level, it indeed supports comparability across different co-authorship practices as well as between areas of research. MFC is thereby useful whenever the research output from institutions with different research profiles are compared, as e.g., in the Leiden Ranking. Finally, as MFC is actually a family of indicators, depending on a sensitivity parameter, it can be adapted to the circumstances.  相似文献   
68.
Citizen participation in E-governance is, essentially, a social exchange between individuals and their government through which the citizen creates public value as well as acquires private value. The direct effects of participation antecedents on participation outcomes have been fully examined, but few researchers have investigated the internal mechanism of citizen participation at the level of psychological value perception. The roles of perceived public and private value between the participation antecedents and outcomes remain unclear. Private value merits careful research in particular as the E-governance environment is being shaped by increasing privatization and continuous IT innovation. Based on the cognitive integration theory and the civic voluntarism model, this paper proposes a theoretical framework to examine the mediating roles of two values. We built a complete research model encompassing ten hypotheses centered on citizen e-participation in the context of green commuting governance. By analyzing survey data on a green commuting platform, we demonstrate the significant mediating effects of these two values and greater effect of private value acquisition on continuous e-participation intentions than public value creation. Our results have important research implications in regards to the roles of perceived values in participation, especially perceived private value.  相似文献   
69.
When myths become canonical beliefs within a professional culture, they can have a profound impact on professional practice. In this paper we identify as a pernicious educational myth the belief that the ability to teach well is a naturally occurring innate talent or skill. The first two sections of the paper aim to demonstrate (i) that the concept of the naturally gifted teacher is a myth based on factually incorrect assumptions about expertise development and (ii) that this myth has several major negative implications for professional practices around teaching in academic libraries. We then we draw on the education literature to offer an alternative model for the cultivation of teaching excellence, an instructional design/action research framework that prioritizes ‘deliberative’ practice over innate talent. We close with suggestions for how academic librarians and library administrators can implement this framework within their institutions.  相似文献   
70.
Diisopropylidenated a-D-glucofuranose (1) was oxidated with CrO;-Pyridine complex. Oxidated product and its hydrate were separated and were reduced together to synthesize diisopro-pylidenated a-D-allofuranose (3 ). The yield of 3 increased by 8% than that with only oxidated prod-uct as reduction substrate. Benzoylated derivative of 3 was selectively hydrolyzed and dimesylated to synthesize 3-O-benzoyl-l ,2-O-isopropylidene-a-D-allofuranose (5) and its dimesylated deriva-tive respectively. The overall yield of 5 from 1 was 36%. Each step and final products were analyzed by 'H-NMR spectra and other methods. The experiments showed that the influence of acetic acid concentration on selective hydrolysis was obvious. The hydrolysis yield was 81. 8%. Oxidation, re-duction and other procedures were practical and had application potential.  相似文献   
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